APES Unit 6 Test

Which of the following best describes a benefit of increasing the number of offshore wind farms rather than onshore wind farms?

• Offshore wind farms will consume less water during operation than wind farms on land because the turbines require less steam for electricity generation.

• Offshore wind farms will decrease the maintenance costs associated with electricity generation because they are cheaper to operate than wind farms on land.

• Offshore wind farms will emit less carbon dioxide and carbon monoxide than wind farms on land because they are farther from urban areas.

• Offshore winds farms will produce up to three times as much electricity as wind farms on land because of increased wind speeds offshore.

Which of the following best describes the energy resource used most often for heating and cooking in less developed countries?

• Bituminous coal is primarily used because of its relative abundance and high moisture content.

• Cogeneration from fuel oil systems is primarily used because it has low up-front costs.

• Biomass is the predominant fuel source because it is easily obtained locally.

• Natural gas is the most prevalent fuel source because it is readily available and produces few air pollutants.

How many BTUs were consumed in the United States in 2017 by consumers that used petroleum as a fuel source?

• 28 quadrillion BTUs

• 36 quadrillion BTUs

• 62 quadrillion BTUs

• 97 quadrillion BTUs

Burning one gallon of gasoline in a car releases approximately 20 pounds of CO2 into the atmosphere.

One person drives 60,000 miles in a car that averages 30 miles per gallon (mpg), while another person drives 60,000 miles in a car that averages 20 mpg. Over the course of the 60,000 miles, how many fewer pounds of CO2 are released by the 30 mpg car than by the 20 mpg car?

• 2,000

• 8,000

• 20,000

• 80,000

• 100,000

Which of the following is a drawback to using biofuels, such as ethanol, as a fuel source?

• Ethanol-blended gasoline has higher carbon emissions than petroleum alone.

• The global demand for biofuels is continually decreasing.

• There is high energy investment in producing and processing the crops needed for ethanol production.

• Ethanol-blended gasoline increases the likelihood of freezing gas lines in winter months.

Economic benefits of building large dams include which of the following?

I. Storage of water for agriculture and domestic use

II. Controlling floods upstream

III. Production of renewable energy

• I only

• II only

• I and III only

• II and III only

• I, II, and III

Based on the diagram, which processes would provide the energy used to generate electricity at the power plant?

• Absorption of incoming solar radiation

• Fusion of atomic nuclei to form heavier nuclei

• Combustion of fossil fuels

• Fission in radioactive fuel

A sample of radioactive waste has a half-life of 10 years and an activity level of 2 curies. After how many years will the activity level of this sample be 0.25 curie?

• 10 years

• 20 years

• 30 years

• 40 years

• 80 years

A home is built with clear glass panels that allow sunlight to pass through. This is an example of

• Active solar

• Passive solar

• Parabolic collector

• Photovoltaic Cells

What is given off as the major waste product in a hydrogen fueled car?

• H₂

• O₂

• H₂O₂

• H₂O